function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bhosale, Harshal & Phansalkar, Pushkar & Sawant, Mandar', 1],
    ['Chan, Kin Onn & Muin, Mohd Abdul & Anuar, Shahrul & Andam, Joel', 1],
    ['David, Patrick & Deuti, Kaushik', 2],
    ['Figueroa, Alex & Low, Martyn E. Y. & Lim, Kelvin K. P.', 2],
    ['Grismer, L. Lee & Neang, Thy & Chav, Thou & Wood, Perry L. & Jr', 1],
    ['Guo, Keji & Deng, Xuejian', 1],
    ['Guo, Yuhong & Wang, Guangli & Rao, Dingqi', 4],
    ['Hakim, Jonathan & Trageser, Scott J. & Ghose, Animesh', 1],
    ['Le, Duong T. T. & Tran, Thinh G. & Hoang, Huy D.', 1],
    ['Liu, Shuo & Rao, Dingqi', 1],
    ['Liu, Shuo & Zhang, Dongru & Poyarkov, Nikolay A. & Hou, Mian', 2],
    ['Vogel, Gernot & Nguyen, Tan Van & Zaw, Than', 2],
    ['Wang, Ping & Che, Jing & Liu, Qin & Li, Ke & Jin, Jie Qiong', 2],
    ['Ziegler, Thomas & Hendrix, Ralf & Thanh, Vu Ngoc & Vogt, Martina', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=23)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 14, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);